Arm-rest-holding means.



F. F. SCHWALLEH & T. IVI. QUINN.

ARM REST HOLDING MEANS.

AEELlcAloN FILED MAY28.1911.

1,300.883, Patented Apr/15,1919.

2 SHEETS-SHEET l.

F. F. scIIIIvAILFIF @I I. IvI. QIIIIIN.

ARM REST HOLDING MEANS. APPLICATION FILED MAY 2a. I9I1.

Patented Apr. 15,1919.

2 SHEETS-SHEET 2.

l@ w Z 55M lf3 ma i Vin the State of Missouri,

FFTE.

FRANK F. SCHWALIJER, OF ST. LOUIS, AND THOMAS M. QUINN, 0F OVER/LAND, MISSOURI.

Specification of Letters Patent.

ARM-REST-HOIJDIN G MEANS.

Patented Apr. i5, ioie.

`Application led May 28, 1917. Serial No. 171,407.

To all whom it may concern.' y

Be it known that we, FRANK F. SoHwALLnR and THOMAS M. QUINN, citizens of the United States, and residing in the city of St. Louis, and Overland, St. Louis county, respectively, have invented a new and useful Arm-Rest-Holding Means, of which the following is a specication.

Our invention relates to improvements in arm-rest holding means for convertible chairs, and has `for its object to provide an arm-rest holding kmeans so constructed that it may be adjusted to hold the arm-rest at different elevations with relation to the movable back section of a convertible or reclining chair.

A further object` of the invention is` to provide a device which will be simple in construction, easily adjusted, durable, and

neat in appearance.

With the above and other objects in view which will appear hereinafter, our invention consists in the construction, arrangements and combination of parts as w1l l be shown in the drawings, clearly described hereinafter, and finally pointed out in the claims hereto appended.

Referring to the accompanying drawing forming ya part of this specification where likeV characters of reference denote similar parts throughout the several views:

Figure 1, is a side elevation of a convertible, chair of the three section type, provided with an arm-'rest holding means constructed in accordance withV our invention.

Fig. :2, is a detail in perspective, of one of the arm-rest supporting members.

Fig. 3, is a plan view of the ratchet-brace.

Fig. 4, is a front elevation of one side of a chair provided with our invention.

Fig." 5, is a detail in sectional elevatlon, of an arm-rest showing the connection thereto of the arm-rest supporting member and the guide link. c

Fig. 6, is a detail Ain side elevation, in

` several positions of the forward end of the arm-rest, the arm-rest supporting member and swinging link, as theyu appear connected to the arm-rest and seat-section'.

Referring tothe drawings, the reference character 1 designates the seat-section of a convertible chair; 2, the movable backsection; 3, the movable front-section; 4, the supporting legs; 5, a'horizontally movable arm; and, 6, an arm fixed to the movable back-section 2 at one end and pivotally connected to the rear end of the arm 5.

The reference numeral 7, designates an arm rest which is pivotally connected at its rear end, as at 8, to themovable back-section 2. The arm-rest 7 is provided with the outer depending flange 9, and a short inner depending rib 10, as clearly shown in Fig. 5.

A brace member 11 is connected at each end to the front and rear legs 4 of the chair in an inclined position, as clearly shown in Fig. 1. This brace-member 11 is provided with a block 12, approximately midway its ends, and having its upper face provided with the ratchet teeth 13. A slotted opening 14 is formed in the rear end brace member 11, and a slotted opening 15 is formed at the forward end of the brace member 11, vas clearly shown in Fig. 3.

The reference numeral 16, designates one of the arm-rest supporting members having the inclined upper face 17, the inclined front face or edge 18, and the curved lower end 19 provided with the ratchet teeth 20.

The arm-rest supporting member 16 is pivotally connected at its upper front corner by means of a pin 21, to the flange 9 of the arm-rest 7. s

The upper rear corner of the arm-rest supporting member 17 is provided with a laterally and inwardly projecting guide-pin 22 which is suitably fixed to the arm-rest supporting member. This guide-'pin 22 is adapted to pass through a slotted opening 23 in the depending rib l0, and may be provided at its inner end with a suitable thumb-nut 24, as shown'in Fig. 5, for locking the parts when desired. y

swinging connecting link 25 is loosely mounted at its upper end upon the guidepin 22 between the arm-rest supporting `member 17 and the depending rib 10, as

clearly shown in Fig. 5. The lower end of the link 25 is adapted to be pivotally connected as at 26 to the seat-section 1. y

It will be observed, that the flange 9, of the arm-rest 7, forms a guide for the upper end of the arm-rest supporting member 17. The arm-rest supporting member 17 and link 24 are both positioned between the flange 9 and rib 10 of the arm-rest 7, as clearly shown in Fig. 5.

It will be observed, from Fig. 6, of the drawings, that the ratchet-teeth 20 of armrest supporting member 16 are adapted to engage the teeth 13Y of the block 12 when the back 2 of the chair is in its upright position, orin any ofthe various inclined positions into which it may be moved, as is manifest.

The ratchet-block 12, it will be observed, supports the arm-rest supporting member in its various adjusted positions, as clearly shown in Fig. 6.

It Vwill be here observed, however,vthat when the back 2 of the chair has been moved to its lowermost or horizontal position, when converting the. chair into acouchor bed, the lower end of the arm-restsupporting member 16, is allowed to pass-through the opening 14 of the brace member 11 and hang freely romits pivot21 and guide-pin 22.

To disengage the ratchet-teeth 2O from engagement with the teeth 13 of the supporting, block 12, the operatornnerely leans forward a little. in the chair and moves the arm-.rests slightly. forw ard u1 pon .the swing-- ing connectinglink` 25.` This operation, it will -be observed, owingto the arcuatemove.-

ment of .the link-25, raises the teeth-.20 of, the arm-rest supporting member 161mmAA engagement with the teeth 13 of the su' portingfblock 12, and then yby leaningvbac ward inthe; chair and pushing rearwardly very slightlyy againstv the frontJ edge 18 of thearmfrestfsupporting member 16, the armrest f supporting member of the link 25 maybe movedrearwardly to their. desired `adj usted positions.- When .the arm-rest. 7 and the back-section 3. have reached thedesired adjusted positions, the operator merely raises up slightly upon the front end offth'e-armest and the arm-rest supportingi member` 16 will then drop linto,

its new adjusted positionandsthe teeth 20h' thereof will laga-inA engage the ratchetteeth 13 of'blo'ck12.and'support the arm-rest in its newselected position..

To again raise.I the arm-rest 7 from any of its .lowermost adjusted positions,l the operator.r pulls the movable back 2 forward, thereby moving the arm-rest'7 forward, and through the swinging and raisin-gf movement of the link 25,.the arm-rest supporting member V16I is moved slightly forwardand upward upon the ratchet-block 12 and thereby disengaging the teeth' 20 from teeth 13, asis manifest.

It willbe observed that the arm-rest 7 maybe moved slightly forwardwhen de sired by merely forcing the front-section 3 rearward causing it to move the horizontally movable arm rearwardly, which in turn imparts-a forward pressure upon the movable back-section 2, and which back in 'turn moves the arm-rest forward, supported, vof course, in this -movementby the link 25, as ismanifest.v

It will be observed Vthat the slotted opening 23 of the rib 10 permits the slight upward swinging movement of the upper rear and the upper end corner of the arm-rest supporting member 16, .when downward pressure; is brought .f to 1 bear upon the arm-rests 7 for releasing the teethi-20i rotfth'ef arm-rest supporting member 16, from the teeth 13, of the rack 12. This slightarcuate movement of the swinging link 25` and of the` arm-rest supporting member 16, is only sutlicient to positively release the two sets of teeth from engagement with one, another to permit the. rearwardQadjustment of thev movable back-.2, .and simultaneously therewith' the lowering. of the` arm-restA 7, which arm-rest'7, is, ofcourse, vagain .supported by means of the member 16 after it has been readjusted and supportedwby-, the rack 12.

From Fig; 6, of the drawings, it will'bea clearly. seen that the slight iorwardmovement ofthe arm-rest moves theupper end of the. link .25 forward and slightly upward, moving. the pin 22 Afrom therlowerend of theA slot 23` to a i positioninear,` the upper. endf thereof and at` the v same. .time withdrawing ,i the teeth 2O` of the armrest supporting member 17 Y from engagement with the. teeth;13: of rack 12, as` clearly shown-,in dtted lines marked .A. The dotted '.lines .markedfB represent i the arm-rest: 7 and arnnrest. sup.- porting member 16 after sligh'tpressurehas been exerted .upon the. front edge thereof and' moving pin. `22to topo:l:'- slot23... The dotted. lines C representthe arm-rest7, `link 25',y and arm-rest supporting gmember, 16E in ,anewv adjusted .positionfrom that' shown in` `full lines. The dotted lines marked D repre.- sent the arm-rest supportingLmember 16Lin'. its lowermostposition... Itassumes this position .only when the back-section W2; is. lowered 1 to form abed orr couch of the. ch'air.. Only one-of the arm-rests `and ,its connections has been ,described ,the1 specification and ,illustrated l in. `the drawings,` but` ,as the: 1 two employed in; a ,chair construction. are just..

alike, .it is `not thought.necessarytordescribe .A

or illustrate but .one side of theV chair.

The many advantages of. then hereinI de'- scribed arm-rest supporting and adjusting means willl readily suggest. themselves: to those skilled infthe artto which-.it appertains; j

We` are-- aware that. various slight. andminor changes may, be made in` ther exact. construction and location ofthe several` parts, hence reserve the right to makesny such changes asl-may ,fairly fallawithin the spirito our. invention and scope off the. appended claims..` f i What we claim is.:

1. In combination-with the movable back sectiono aileg supportingclrair having a.- seat-section, of an arm-resthaving a, de pending outer flange pivotallyconnected-to the movable back-section, a rib depending from saidarm-rest having avslotted opening, an arm-rest supporting member pivotally connected at its upper front corner to said arm-rest, a pin Xed to the upper rear corner of said arm-rest supporting member and adapted to pass through the slotted opening in the aforesaid rib, a link pivotally mounted upon said pin at its upper end and pivotally connected at'its lower end to the seat-section of said Chair, teeth formed in rthe lower edge of said arm-rest supporting member, and means carried by the chair for supporting said arm-rest supporting member in various selected elevations.

2. In combination with a leg supported chair having a seat-seotion, a movable backseotion and a movable front-section capable of being adjusted to form a bed, of an armrest for each side of the chair pivotally oonneoted at their ends to the movable backseotion, a rib fixed to each arm-rest having a slotted opening, an arm-rest supporting member pivotally connected at its upper Copies of this patent may be obtained for ve cents each, by addressing the front corner to the forward end of each armrest, a guide pin fixed to the upper rear co1'- ner of eaoh arm-rest supporting member adapted to pass through the slotted opening in each of the aforesaid ribs, a guide link mounted at its upper end to each of the aforesaid guide pins and. pivotally connected at their lower ends to the seat-section of the chair, ratchet teeth formed at the lower edge 'of each arm-rest supporting member, and

means supported on each side of the chair for supporting said arm-rest supporting member in several adjusted positions for holding said arm-rest at various elevations and the back seat-section of the chair in several inolinations.

In testimony whereof, we have hereunto signed our names to the specication.

FRANK F. SCHWALLER, THOMAS M. QUINN.

Commissioner of Patents,

Washington, D. G. 

